.S.icon:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 10px;
  height: 10px;
  -webkit-transform: rotate(225deg);
          transform: rotate(225deg);
  border-radius: 50%;
  border-top: solid 4px currentColor;
  border-right: solid 4px transparent;
  border-bottom: solid 4px currentColor;
  border-left: solid 4px currentColor;
}
